baber/WOPTO huggingface dataset:
Patent GB-500802-A (GB)
Title: Improvements in and relating to gas hot plates and the like
IPC: F24C15/10
Filed: 1937-08-14
Abstract: 500,802. Gas cooking-stove hot-plates. WILSON, W. A. Aug. 14, 1937, No. 22384. [Class 126] In a gas cooking-stove, one or more hotplate burners B stand on a tray T, and one or more frames P<1> for supporting utensils being heated are placed over the tray, means being provided to ensure correct relationship between frames and pan and between frames and burners. Depending lugs for engagement with the tray may be provided on the frames p<1> or on the radial bars P forming parts of them. The inner ends of the radial bars P may be shaped to fit over the burners, or may engage with lugs on the burners. Specification 491,029 is referred to.
Patent GB-672190-A (GB)
Title: Improvements in or relating to windscreen or like cleaning devices
IPC: B60S1/48
Filed: 1950-09-12
Abstract: 672,190. Cleaning windscreens. SOC. D'ETUDES ET D'APPLICATIONS INDUSTRIELLES DE PROCEDES ET DISPOSITIFS NOUVEAUX. Sept. 12, 1950 [Sept. 22, 1949], No. 22401/50. Class 138 (i). A windscreen washing-device comprises in combination a liquid reservoir and electro-magnetic means for spraying the liquid on to the windscreen such that a measured quantity of liquid is sprayed at each operation. As shown in Fig. 1, the combined liquid container and electric pump A are mounted beneath the bonnet and connected to a fixed nozzle E. The pump is energised by closing the switch I. In Fig. 2, the liquid container 1 is mounted on the body 3 of a diaphragm pump. The pump chamber 4 communicates with the reservoir through ports 5 controlled by a flap valve 6, and with the spraying jet by a ball valve 7. When the switch is closed the solenoid 12 is energised to lift the armature 10 and diaphragm 8 to discharge a measured quantity of liquid. The spring 9 returns the diaphragm on the suction stroke. Alternatively, the suction stroke may be solenoid operated and the discharge stroke spring operated. The nozzle may be attached to a wiper blade.
Patent GB-184072-A (GB)
Title: Improvements in or relating to hand-grenades or the like
IPC: F42C14/02
Filed: 1921-08-24
Abstract: 184,072. Janecek, F. Aug. 24, 1921. Projectiles; projectile fuzes.-Relates to hand grenades of the kind in which the striker is released and cocked by centrifugal force when the grenade rotates about a transverse axis during flight, and is thrust back by its spring to explode the grenade when centrifugal force ceases. According to the invention, (1) the striker 8, 12 is held away from tho percussion cap 10 by a conical safety bolt 3 normally loosely fitted in a recess 6 in the percussion-cap holder 9, as shown in Fig. 1, and adapted to move out of this recess and into an inoperative position, as shown in Fig. 3, when the grenade rotates and the striker moves away from the cap; (2) the striker is retained in its retracted or cocked position by a heart-shaped spring 16 fitted in a groove in the striker and adapted to engage a groove 17 in a fixed part 13, so that the striker does not move back gradually but is suddenly thrust back against the percussion cap; and (3) the striker is held at safe during transport by a screw plug 18 which acts as a stop to the central stem 12 of the striker, thereby preventing any outward movement of the striker capable of releasing the safety bolt 3, the screw plug being withdrawn before the grenade is thrown but being held in place until then against a packing 20 by a spring catch 19. The grenade body 2 is cast in one piece, or made of sheet metal in two halves pressed into each other, the casing 4 of the firing mechanism being also pressed into the mouth of the grenade body.
Patent GB-1452789-A (GB)
Title: System for monitoring acoustic noise from a solid structure such as a machine frame
IPC: G01M13/00
Filed: 1973-10-12
Abstract: 1452789 Vibration monitor EXXON RESEARCH & ENG CO 12 Oct 1973 [6 Nov 1972] 22614/76 Divided out of 1452788 Heading G1G Noise generated by a machine element, e.g. a bearing or gear, is monitored by positioning two acoustic sensors one each side of the site of the element and deriving a signal which is a function of the instantaneous product of the respective output signals of the sensors, the derived signal being indicative of the condition of the element. In the embodiment described the sensors are equidistant from the site, the sensor outputs are filtered and amplified before being multiplied together, and the product signal is integrated with respect to time to give the derived signal for driving a meter or alarm device. The derived signal is compared with the gross received noise at the multiplier input to obtain a measure of the element-generated noise, and this measure is compared with a reference to detect deterioration of the element. The multiplier output is observed on a CRT to detect any spurious periodic noises. Several sensor pairs may be used sequentially to monitor noises at different sites.
Patent GB-940104-A (GB)
Title: Improvements relating to photographic apparatus
IPC: G03B17/52
Filed: 1962-02-27
Abstract: 940,104. Processing photographic sheets. INTERNATIONAL POLAROID CORPORATION. Feb. 27,1962 [March 6, 1961], No. 22619/63. Divided out of 940,103. Heading G2A. The description is substantially the same as in Specification 940,103, but the claims are directed specifically to the fluid dispensing means shown in Fig. 5. The two sheets 16,18 to be pressed together pass between rollers 32, 34. The processing fluid is fed under pressure to a nozzle 50 having a passage 52 therein through which the fluid passes. The nozzle ends in a pair of thin flexible lips 54 (e. g. silicone rubber) tapered to conform to the curvature of the sheets as they enter the bite between the rollers. The nozzle extends the width of the sheets 16,18. Specifications 684, 592 and 714, 412 also are referred to.
Patent GB-891854-A (GB)
Title: Improvements in or relating to gas filters
IPC: F02M35/02
Filed: 1958-06-13
Abstract: 891,854. Gas filters. COOPER'S MECHANICAL JOINTS Ltd., STREETE, C. M., and WITCHELL, S. P. May 21, 1959 [June 13, 1958], No. 22689/61. Drawings to Specification. Divided out of 891,853. Class 8(2). The subject-matter of this Specification is contained in the Complete Specification of Specification 891,853 but the claims relate to securing the filter element within the filter casing. Specification 768,167 also is referred to.
Patent GB-249174-A (GB)
Title: Improvements in diaphragms for use in talking machines and other acoustic apparatus
IPC: H04R7/00
Filed: 1924-09-25
Abstract: 249,174. Coe, F. T. D. Sept. 25, 1924. Diaphragms.-A diaphragm for gramophones and the like, is formed with a number of overlapping slits 3 circumferentially arranged so that there is no direct path for vibrations from the centre 2 of the diaphragm to the periphery. The diaphragm may be of metal such as aluminium or zinc, and the slits are closed by applying rubber solution or placing fabric or other sheet material at the back or front of the diaphragm. The diaphragm may be formed of an annulus of one material formed with the slits and a central disc of a different material secured to the annulus.
Patent GB-1307809-A (GB)
Title: Capronylhydroxy-benzoic acid esters their use as nematogenic compounds and nematogenic mixtures containing them
IPC: C09K19/46
Filed: 1971-04-19
Abstract: 1307809 4 - Capronyl - hydroxy - benzoic acid- 4<SP>1</SP> - alkoxy - phenyl esters FARBWERKE HOECHST AG 19 April 1971 [28 Feb 1970] 22723/71 Heading C2C [Also in Divisions C4 and H4] The invention comprises a nematogenic compound of the formula wherein R represents an alkyl radical. It may be obtained by reacting a 4-hydroxy-phenyl-alkyl ether with 4-capronyl-hydroxy-benzoyl chloride. Examples are given for the production of the compounds. These compounds are nematogenic compounds and may be used in nematogenic  mixtures.
Patent GB-184704-A (GB)
Title: Improvements in apparatus for cooking food and treating articles by means of heat
IPC: A47J27/17
Filed: 1921-08-29
Abstract: 184,704. Demuth, A. M. Aug. 29, 1921. Steam cooking-apparatus.-A steam or hotwater cooking or treating apparatus comprises a closed boiler 10 and a cooking-chamber 12 projecting therein, the upper flanges 11, 13 being riveted or otherwise secured: together. The liquid-level in the boiler is maintained at a predetermined leved by a supply reservoir 21, provided with. a water gauge 24, the orifice 22 being valve-controlled and allowing the liquid to issue only when the opening is not sealed by the liquid in the boiler. A similar reservoir 30, controlled by a screw-operated valve 36, supplies liquid to the cooking-chamber 12, the sleeve 43 surrounding the pipe 31 serving as a spacer between the boiler and cooking-chamber. The cover 15 is provided with a safety-valve 20 and handles 19 and the boiler 11 is provided with a pet cock, which is opened to produce a drier heating medium in the boiler to brown more effectively the articles in the cooking-chamber, and also a pressure gauge, safety-valve and thermometer. A perforated stand 54 is used in the cooking chamber and the drain pipe opening is provided with a strainer 29, or if it is desired to retain the juices in the cooking-chamber, a plug is inserted in the opening. In a modification, Fig. 4, a perforated vertically corrugated container is inserted in the chamber 12, the container having a cover 63 with a. safety-valve 64. The lower portion of the container is not perforated. A cleaning-door 54<a> is provided and the apparatus is supported on a stand and heated from below by a burner.
Patent GB-402891-A (GB)
Title: Improvements in and relating to the dispersion of bitumen
IPC: C08L95/00
Filed: 1932-08-15
Abstract: In the process for the production of bituminous emulsions claimed in the parent Specification in which brown coal rich in bitumen or oil shale is used as the dispersing agent, the latter is enriched with regard to its bitumen content before use e.g. by treatment with acids or alkaline lyes or other solvents.  In examples: (1) Central German brown coal is ground, stirred with sulphuric acid and after filtering, treated with soda lye to remove sodium humate; the resulting mud is repeatedly washed and dried and then melted with Mexican bitumen; water, which may contain alkaline substances and a further quantity of melted bitumen are added and the mixture thoroughly stirred, mechanically or by means of air: (2) a shale oil is concentrated by buddling and used as in the previous example: (3) montan wax is added to a mixture of asphalt and Bohemian brown coal which is then heated; a further quantity of asphalt is subsequently added, and the emulsification carried out as an example 1.
Patent GB-279599-A (GB)
Title: Improvements in and relating to variable speed and reversing transmission gearings
IPC: F16H61/662
Filed: 1926-09-17
Abstract: 279,599. Davy, R., and Mills, S. J. Sept. 17, 1926. Variable-speed gearing is rendered automatically variable with the load by a movable friction roller E which is balanced between the reactions of a coned driving-disc D and of a screw or helical mounting F on a driven shaft P. Spring G shown is a buffer. Spring C maintains frictional pressure. The shaft P may be connected to an ultimately-driven gear H through a reversing-gear in which a double positive clutch M sliding in engagement with the carrier L of intermediate pinions K may be engaged with a side gear J<1> for solid forward driving. When the clutch M is engaged with a fixed casing A, the gear H is driven reversely.
Patent GB-402551-A (GB)
Title: Improvements in and relating to welding apparatus
IPC: B23K11/31
Filed: 1932-08-16
Abstract: 402,551. Actuation of switches. GROVES, W. W., 30, Southampton Buildings, London. -(Briggs Manufacturing Co. ; 11631, Mack Avenue, Detroit, Michigan, U.S.A.) Aug. 16, 1932, No. 22971. [Class 38 (v).] A switch for the circuit to the electrodes of a welding - machine comprises contacts 85, 86, closed by a bridge-piece 91 on movement of a fluidactuated piston 94, the switch being automatically closed on forward movement of a piston 65 to cause the electrodes to approach. Means are also provided for breaking the circuit after a predetermined time-interval. On movement of the piston 65, passages 104, 105 are exposed to admit pressure fluid to a channel 102, the fluid passing through a needle valve 106 to one side of the piston 94, and through a cylinder 107 and a second needle valve to the other side of the piston 94. The valves are so adjusted that the piston initially moves to the right to close the switch and after a predetermined time interval moves to the left as the pressure is built up on the right-hand face of greater area to open the circuit, the movement being in part assisted by a spring 98.
Patent GB-921894-A (GB)
Title: Bearing bush
IPC: F16C33/20
Filed: 1959-07-03
Abstract: 921,894. Bearing bushes. LEMFORDER METALLWARENGESELLSCHAFT. July 3, 1959 [July 5, 1958], No. 23011/59. Class 12 (1). A bearing bush comprises an outer ring 1 of metal and axially-spaced inner rings 8, 9 of polyurethane which are an interference fit within the ring 1, a corrugated annular spring 11 being located between the rings 8, 9 and bearing against the inner cylindrical surface of the ring 1 to prevent relative rotation of the rings. A bore 12 is provided in the ring 1 through which lubricant may be supplied to the space between the rings 8, 9.
Patent GB-595197-A (GB)
Title: Recovery of molybdenum, tungsten and uranium
IPC: C01G41/00
Filed: 1944-11-20
Abstract: Molybdenum, tungsten or uranium sulphides, prepared with hydrogen sulphide, are wet oxidised to substantially water insoluble oxides which are then dissolved in aqueous ammonia. Chlorates, perchlorates, chromates, dichromates, permanganates, ozone or peroxy compounds may be used, but 55 per cent. nitric acid, together with a continuous stream of oxygen containing gas, at 75-95 DEG C. is preferred.  The sulphides are preferably suspended in dilute nitric acid and the oxides leached with 14 per cent. ammonia.  Examples describe the formation with nitric acid of H2WO4, MoO3 and uranyl salts from which hydrogen peroxide precipitates UO4.  The process is applicable to the regeneration of sulphide catalysts containing nickel, molybdenum, tungsten or uranium, and also to ores, e.g., WO3 after sulphiding at 200-700 DEG C. preferably at 400-500 DEG  C. Spent catalysts may if necessary be decarbonised at 600-700 DEG C. and sulphided.  The preparation of a catalyst from nickel nitrate and ammonium thiotungstate is described.  Specification 458,699 and U.S.A. Specifications 2,403,771 and 2,403,772 are referred to.  The Specification as open to inspection under Sect. 91 discloses also the application of the process to chromium sulphide.  This subject-matter does not appear in the Specification as accepted.
Patent GB-201786-A (GB)
Title: Process for producing vat colouring-matters
IPC: C09B5/62
Filed: 1922-08-24
Abstract: By treating perylene-3 : 4 : 9 : 10-tetracarboxylic acid, or a substitution product thereof, with ammonia or primary aromatic or aliphatic amines it is converted into difficultly soluble imides which dye animal and vegetable fibre in fast red to blue-violet shades from the vat.  In examples the acid or its ammonium salt is heated with ammonium carbonate, methylamine hydrochloride, or aniline; other suitable amines are p-chloraniline, a  or b naphthylamine, a  or b -aminoanthraquinone, also diamines such as o-, m-, and p-phenylenediamines, 1 : 8-naphthylenediamine, and benzidine. The perylene 3 : 4 : 9 : 10-tetracarboxylic acid may be prepared by oxidizing with hypochlorite, chromic acid or other oxidizing agent, the vat dyes made by alkali fusion of perinaphthindanone or perinaphthindandione.
Patent GB-356730-A (GB)
Title: Improvements in or relating to apparatus for controlling the speed of a d.c. electric motor
IPC: H02P7/06
Filed: 1930-06-05
Abstract: 356,730. Automatic electromechanical regulators. REYROLLE & CO., Ltd., A., Hebburn-on-Tyne, and LINSTOW, F. N., Sunniside, Midhurst Road, Benton, Northumberland. June 5, 1930, No. 23047/31. Divided on 356,250. Drawings to Specification. [Class 38 (iv).] A motor is maintained at constant speed by varying its field according to the supply voltage by means of a voltmeter movement co-operating with a follower device. The motor is used to drive a master frequency generator, the output of which may control the frequency supplied from a generating station. The apparatus and circuits employed are identical with those described in Specification 356,250.
Patent GB-980898-A (GB)
Title: 6-methyl- and 1,6-dimethylergoline i derivatives
IPC: C07D457/02
Filed: 1963-06-10
Abstract: The invention comprises 6-methyl- and 1,6-dimethyl - 8 - (a  - hydroxy - alkyl) - ergoline-I derivatives of the general formula <FORM:0980898/C2/1> where R represents a hydrogen atom or a methyl radical, R1 represents a methyl or ethyl radical X represents <FORM:0980898/C2/2> and R11 represents a hydrogen atom or a radical of an aliphatic-, cycloaliphatic-, or aromatic-carboxylic acid having from 1 to 10 carbon atoms or of nicotinic acid, and the preparation thereof by reducing the corresponding 8-acyl-ergoline-I with a reducing agent capable of reducing a keto group to a secondary alcohol group to an 8 - (a  - hydroxy - alkyl) - ergoline - I which, where necessary, is separated into the two C17 stereoisomers "Rectus" and "Sinister" and/or acylated with the anhydride or chloride of the appropriate carboxylic acid. The reduction of the 8-acyl-ergoline is preferably performed with lithium aluminium hydride in an inert solvent, e.g. an ether, generally at room temperature but preferably completed warm. The acylation may be carried out with the anhydride or chloride of the appropriate carboxylic acid, optionally in the presence of a tertiary amine.  The stereoisomers may be separated prior to or after acylation by fractional crystallization or chromatography.  1,6-Dimethyl - 8 - (a  - hydroxy - ethyl) - ergoline - I R (and S) N-ethylcarbamate are prepared by the reaction of 1,6 - dimethyl - 8 - (a  - hydroxy-ethyl) -ergoline-I R (and S) with ethyl isocyanate in the presence of pyridine.  6 - Methyl - and 1,6 - dimethyl - 8 - acyl - ergolines-I may be prepared by reacting dihydrolysergamide and 1-methyl dihydrolysergamide with an alkyl magnesium bromide.  Therapeutic compositions with oxytocic, antienteraminic, adrenolytic, hypotensive and sedative properties comprise compounds of the formula given above together with a therapeutically acceptable diluent or carrier.
Patent GB-432769-A (GB)
Title: Improvements in and relating to wheel thrust bearings
IPC: B60B37/04
Filed: 1934-08-10
Abstract: 432,769. Thrust-bearings. RUHRHANDEL GES., 1, Preselweg, and SCHUCK, C., 6, Steinstrasse, both in Haspe, Hagen, Germany. Aug. 10, 1934, No. 23127. [Classes 12 (i) and 144 (i)] A wheel thrust-bearing for mine trolleys or wagons comprises a pair of collars 6, 4, Fig. 1, one of which is secured to the stationary part 1 of the bearing, while the other is connected to the wheel hub 10. One of the collars is pressed axially by a spring 7. In the form shown in Fig. 1, the collar 6 is clutched by pins 11 to the hub 10 of the wheel. A packing ring 5 is provided between the collar 4 and the housing 1 and a ring 8 is provided in the collar 6 to prevent lubricant from creeping along the shaft 3. The wheel is secured to the shaft 3 by a ridged ring 13 engaging aligned grooves on the shaft 3 and hub 10 and secured by a screw 14. In the form shown in Fig. 2, the wheel runs on a bush 17 screwed to the end of the shaft 3 and prevented from unscrewing by a set screw 19. In the form shown in Fig. 3 the collar 6 is formed with a bush 20 extending into the wheel hub. In the form shown in Fig. 4, the shaft 3 is non-rotatable and the collar 4 is loosely retained in the housing 1 by a screw 24. The collar 6 is pressed into the wheel hub 10. The wheel is secured to the shaft by a pin 26 engaging a groove 27. In a similar form with rotatable shaft, the collar 4 is provided with a bush loosely held in the housing by a screw. In the form shown in Fig. 6, the spring 7 is housed in the cover-plate 30 on the housing 1, and the collars 6, 4 are toothed at 29 to engage the wheel hub and housing respectively. In a further form, the spring-pressed collar 4 is non-rotatable on the fixed axle, the collar 6 being pressed into the hub to serve as a bearing, or a separate roller bearing may be provided within the hub.
Patent GB-727329-A (GB)
Title: Improvements in or relating to coating metals
IPC: B23K35/22
Filed: 1952-09-15
Abstract: A process for coating hard metals comprises coating the said hard metal with a composition consisting of a brazing metal in atomized powder form, Fe, Ni, Co, W or other metal powder which is capable of being wetted by the brazing metal and during the heating does not dissolve completely in the brazing metal, a thermoplastic resin which distils without substantial residue, e.g. polystyrene, polyvinyl chloride and polymethyl methacrylate, and an organic solvent, e.g. benzene, toluene, acetone and methyl ethyl ketone, and heating the coated hard metal in a non-oxidizing atmosphere at a high enough temperature for the brazing metal to melt and wet the surface of the hard metal.  A hard metal tool may be made by brazing the coated hard metal to steel, or reducing the said coated metal to the desired size and clamping it to a steel body.  Examples are given wherein iron and copper powders are used.
Patent GB-1294732-A (GB)
Title: Multiplexing of binary signals
IPC: H04L5/22
Filed: 1970-05-13
Abstract: 1294732 Digital TDM systems CIT COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS 13 May 1970 [14 May 1969] 23196/70 Heading H4P In an apparatus for encoding binary signals such as is disclosed in Specification 1,294,731 the output of a plurality of coders is time division multiplexed on to a plurality of sub bands such that at least one channel operating at a slow speed S occupies one sub band, and at least one other channel operating at a speed nS, where n is an integer, occupies n sub bands. One sub channel, e.g. the first may be used as a synchronizing channel for decoding. Fig. 1 illustrates a system of 32 sub bands which may be utilized in conventional manner by 32 channels each 50 baud, or according to the invention in a multi speed system the bands may be distributed proportional to the speed i.e. 8 x 50bd, 2 x 200bd and 1 x 100bd, the faster channels utilizing more sub bands proportional to the speed i.e. the 800bd system occupying 16 sub bands. The sub bands are preferably evenly distributed so that for example the 800bd band uses all the odd numbered sub bands. Gray code may be used for synchronizing coded signals as described in connection with the prior Specification, and signals are converted to this code (at T1, Fig. 3, not shown) after multiplexing at (X). A corresponding Gray code converter (T2) is used as a receiver. Signals are sampled at a rate (F1 &c.) proportional to incoming speed.